Foot-vise.



Patented Dec. Il, |900.

no. 663,3l9.

E. B. NEwNAM.

FOUT VISE.

(Applicltnn led Aug. 22, 18978.)

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No. 663,8I9. Patented Dao. Il, |900.

E. B. NEWNAM. l

FOUT VISE.

(Application Sled Aug. 22, 1898.) (No Ilodel.) 2 Sheets-Shea# 2.

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UNITED STAT-nsv Parent rrioe'.

EDWARD B. NEWNAM, OF DENVER, COLORADO.

FOOT-VIS E.

SPECIFICATION forming part of Letters Patent No. 663,819, dated December11, 1900.

Application filed August 22. 1898. Serial No. 689.202. (No model.)

To all whom it may concern:

Be it known that I, EDWARD B. NEWNAM, a citizen of the United States ofAmerica, residing at Denver, in the county of Arapahoe and State ofColorado, have invented certain new and useful Improvements inFoot-Vises; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to the characters ofreference marked thereon, which form a part of this specification.

My invention relates to improvements in foot-vises of the class setforth in United States Letters Patent No. 556,433, issued to me March17, 1896; and to this end the invention consists of the featureshereinafter described and claimed, all of which will be fully understoodby reference to the accompanying drawings, in which is illustrated anembodiment thereof.

In the drawings, Figure 1 is a side elevation of my improved foot-vise.Fig. 2 is an edge view of the same. Fig. 3 is a vertical section takenthrough the vise. Fig. eis across-section' taken on the line a: .'11,Fig. 3. Fig. 5 is a perspective detail view of the locking-arm. Fig. 6is a fragmentary perspective view of the guard-spring which normallyholds the locking-arm in the released position.

Similar reference characters indicating corresponding parts in theviews, let the numeral 5 designate a stationary upright bar provided atits top with a right-angular extension 5a, which is made fast to thestationary jaw of the vise. The part 5 is formed integral with the part5 and occupies a position on the farther side of the vise or beyond theother parts. (See Figs. 1 and 3.) To the bar 5 is rigidly connected bymeans of a plate 6 another upright bar 7,l Whose upper extremity isfashioned to form 'the stationary jaw 7a of the device. The movable jaw8 is provided at its lower extremity with a laterally-projecting tongue8a, apertured to receive a closely-fitted disk 9, eccentrically `mountedon a spindle 10, journaled in a proof which the eccentric disk may beactuated for the purpose of raising the jaw S, as set forth more indetail in the patent previously issued to me as aforesaid. The lowerextremity of the jaw 8 is connected with the foot-lever 14 by means of acoil-spring 15 and a rod 17. The lever 14. is fulcrumed on the frame-bar5, as shown at 18. Its short arm 11ia is pivotally connected, as shownat 19, with the lower extremity of an extensible rod 20, Whose upperextremity is connected with a lever 21, the latter being fulcrumed, asshown at 22, on one extremity of a loose yoke 23, surrounding the twojaws of the vise. The opposite extremity of the lever 21 is pivotallyconnected with the movable jaw 8. The extremity of the yoke 23 remotefrom the fulcrum 22 is provided with a nut 24., through which passes ahand-screw 25, whose inner extremity bears against the stationary jaw7a. position of the movable jaw with reference to the stationary jaw maybe regulated at will. The yoke 23 rests on and is supported by across-plate 7h, mounted on the stationary bar 7.

To the bar 7, below the jaw, is attached by means of bolts 26 or othersuitable fastening device a leaf-spring 27, provided with a slotl27%through which a series of teeth 7 d, formed on the outer edge of thebar 7, protrude When i the spring is pressed toward the bar or to theposition shown by dotted lines in Fig. l. To the extremity of thefoot-lever 14 remote from the fulcrum 1S is pivotally connected an arm28, whose upper extremity or head, which is attened and turned inwardlyat an angle to the body of the arm, is provided With an opening 28,through which the spring 27 passes and on which the arin is adapted toslide freely. The upper extremity of the arm 28 is further provided withan opening 28, communicating with the opening 28a to allow the head ofthe arm to embrace the toothed edge 7d of the bar 7. This head oppositethe opening 28c is provided Witha jaw 28d, which is adapted to engagethe teeth 7d and lock the foot-lever in any desired position ofadjustment. To the outer extremity of the foot-lever 14 is alsopivotally attached an auxiliary lever 29, whose inner arm is adapted toen- By means of this screw and the yoke the IOO gage a stop 111, whosefunction is to keep the auxiliary lever in alinement with the main leverand give the two elements the effect of a single lever while applyingpower to the vise. This auxiliary or extension lever is adapted to foldup against the main lever when not in use, as explained in my previouspatent.

The bar 7 is provided with a horizontal arm 30, which projects into anopening formedin the movable jaw 8, which is guided by the said arm. Thearm may be secured to the bar 7 in any suitable manner. As shown in thedrawings, a rivet A is employed.

The rod 2O consists of two parts 20a and 20C, one ot' which is providedwith a threaded socket,which the reduced threaded extremity of the otheris adapted to engage. By means of this construction the length of therod may be regulated at will by disconnecting the part 20c from thelever 14.

From the foregoing description tne use of my improved foot-vise will bereadily understood. The space between the' jaws when open is regulatedby means of the handscrew 25. The jaw 8 is moved toward the jaw 7a bypressing downwardly on the auxiliary lever 29 with the foot, thus movingthe rod 2O upwardly and actuating the normallyinclined power -lever .21,which as it approaches the horizontal position moves the jaw 8 towardthe right (referring to Fig. l) and causes it to grip whatever may beplaced between the two jaws. The movable jaw is locked in the grippingposition by means of the arm 28, which though normally held in theunlocked position by the leaf-spring 27 may be quickly thrown toengagement with the teeth 7d, as shown byV dotted lines in Fig. 1,bysliding the foot forward to engagement with the lower portion 28g of thelocking-arm 28, which is inclined to facilitate this action by. the userof the vise. When the arm 28 is in this position, the jaw 8 is securelyheld as adjusted. The locking-arm may be quickly released by pressing onthe foot-lever, when the springA 27 will immediately and automaticallythrow the locking-lever out of engagement wit-h the teeth 7d. The spring15 will then throw the foot-lever to the full-line position in Fig. l,thus opening the jaw 8 or moving it from the jaw 7a to the full extent.

Having thus'described my invention, what I claim is-' l. In a foot-vise,the combination of a stationary jaw, a movable jaw, a yoke embracing thetwo jaws, a power-leverfulcrumed on the yoke ,having one arm pivotallyconnected with the movable jaw, a foot-lever, a rod connecting thefoot-lever with the other arm of the powerlever, a locking arm pivotallymounted on the foot-lever, a spring normally holding the locking-arm inthe released position, the frame being provided with teeth which thelocking-arm is adapted to engage when moved in opposition to the spring.

2. In a vise, the combination of a stationary jaw, a movable jaw, a yokeembracing Ythe two jaws, a nut mounted on the yoke, a screw passingthrough the nut and engaging one of the jaws, a power-lever fulcrumed onthe yoke and connected with the movable jaw, a foot-lever, and asuitable connection between the foot-lever and the power-lever, wherebythe two levers are simultaneously actuated.

3. In a vise, the combination of a stationary jaw, a movable jawpivotally connected with the stationary jaw, a yoke surrounding the twojaws, means attached to the yoke for regulating the space between thejaws when open, a power-lever fulcrumed on the yoke, and connected withthe movable jaw, and suitable means for operating the power-lever.

4. The combination with a stationary frame and two jaws, of apower-lever fulcrumed in suitable proximity to one of the jaws, one armof the lever being suitably connected with the jaw, a foot-lever, a rodconnecting the two levers, a locking-arm pivotally mounted on thefoot-level', a spring normally holding the locking-armin the releasedposition, the frame being provided with teeth which the locking-arm isadapted to engage when moved in opposition to the spring.

5. The combination with the jaws of a vise, of a power-lever fulcrumedon a movable support and connected with the movable jaw, a foot-lever, asuitable connection between the two levers, whereby thelevers and themovable jawmay be simultaneously actuated, a locking-arm pivotallymounted on the footlever, a spring normally holding the lockingarm inthe released position, the frame being provided with teeth which thelocking-arm is adapted to engage when moved Ain opposition to thespring.

6. In a vise, the combination of a stationary frame, a foot-leverfulcrumed thereon, a locking-arm pivotally mounted on the footlever,notches or teeth formed on the frame, and a spring normally holding thelockingarm in the released position, the locking-arm being adapted, whenmoved in opposition to the spring, to engage the teeth and lock thefoot-lever in any desired position of adjustment.

7. In a vise, the combination with a suitable frame and a foot-leverfulcrumed thereon, of a locking-arm pivotally mounted on the foot-lever,and a leaf-spring engaging the locking-arm and normally holding it inthe released position, the frame being provided with notches or teethwhich the locking-arm is adapted to engage when moved in opposition tothe spring.

8. The combination with a frame, of a spring-held foot-lever fulcrumedthereon, a locking-arm pivotally mounted on the footlever and having anopen head, a leaf-spring passing through the head and provided with aslot, teeth formed on the frame and adapted to protrude through the slotin the springl and IOO IZO

engage the head of the arm which is fashioned to engage the teeth andlock thelever in any desired position of adjustment.

9. In a foot-vise, the combination With a 5 stationary jaw, a movablejaw, and a loose yoke embracing the two jaws, of a power-lever fulerumedon the yoke and connected With the movable jaw, a foot-lever, a rodconnecting the tWo levers, a locking-arm Io mounted on the foot-leverand adapted to engage teeth formed on the frame, and a spring normallyholding` the looking-arm in the released position.

In testimony whereof I afx my signature in presence of two Witnesses.

EDWARD B. NEWNAM;

Witnesses:

A. J. OBRIEN, A EDITH HIMsWoRTH.

